543 citations · 1.2k across the 14 of their papers we have counts for
15 papers
Controllable interaction between photons and distant spins via vacuum Rabi oscillations
Xiao Xue, Jurgen Dijkema, Tobias Bonsen +7
Vacuum Rabi oscillations between a single photon and a single spin demonstrate the capability of harnessing light-matter interaction at the level of a single quantum of energy. Sin…
Quantum Coulomb drag signatures of Majorana bound states
Zi-Wei Li, Jiaojiao Chen, Wei Xiong +2
Majorana bound states (MBSs), with their non-Abelian statistics and topological protection, are key candidates for fault-tolerant quantum computation. However, their unambiguous id…
Near-Term Spin-Qubit Architecture Design via Multipartite Maximally-Entangled States
Nikiforos Paraskevopoulos, Matthew Steinberg, Brennan Undseth +4
The design and benchmarking of quantum computer architectures traditionally rely on practical hardware restrictions, such as gate fidelities, control, and cooling. At the theoretic…
Modeling and Experimental Validation of the Intrinsic SNR in Spin Qubit Gate-Based Readout and Its Impacts on Readout Electronics
Bagas Prabowo, Jurgen Dijkema, Xiao Xue +3
In semiconductor spin quantum bits (qubits), the radio-frequency (RF) gate-based readout is a promising solution for future large-scale integration, as it allows for a fast, freque…
Two-qubit logic between distant spins in silicon
Jurgen Dijkema, Xiao Xue, Patrick Harvey-Collard +6
Direct interactions between quantum particles naturally fall off with distance. For future-proof qubit architectures, however, it is important to avail of interaction mechanisms on…
A SWAP Gate for Spin Qubits in Silicon
Ming Ni, Rong-Long Ma, Zhen-Zhen Kong +13
With one- and two-qubit gate fidelities approaching the fault-tolerance threshold for spin qubits in silicon, how to scale up the architecture and make large arrays of spin qubits…
Simple framework for systematic high-fidelity gate operations
Maximilian Rimbach-Russ, Stephan G. J. Philips, Xiao Xue +1
Semiconductor spin qubits demonstrated single-qubit gates with fidelities up to benchmarked in the single-qubit subspace. However, tomographic characterizations reveals no…
Nonlinear response and crosstalk of electrically driven silicon spin qubits
Brennan Undseth, Xiao Xue, Mohammad Mehmandoost +7
Micromagnet-based electric dipole spin resonance (EDSR) offers an attractive path for the near-term scaling of dense arrays of silicon spin qubits in gate-defined quantum dots whil…
Atomic fluctuations lifting the energy degeneracy in Si/SiGe quantum dots
Brian Paquelet Wuetz, Merritt P. Losert, Sebastian Koelling +16
Electron spins in Si/SiGe quantum wells suffer from nearly degenerate conduction band valleys, which compete with the spin degree of freedom in the formation of qubits. Despite att…
Computing with spin qubits at the surface code error threshold
Xiao Xue, Maximilian Russ, Nodar Samkharadze +4
High-fidelity control of quantum bits is paramount for the reliable execution of quantum algorithms and for achieving fault-tolerance, the ability to correct errors faster than the…
CMOS-based cryogenic control of silicon quantum circuits
Xiao Xue, Bishnu Patra, Jeroen P. G. van Dijk +21
The most promising quantum algorithms require quantum processors hosting millions of quantum bits when targeting practical applications. A major challenge towards large-scale quant…
Repetitive quantum non-demolition measurement and soft decoding of a silicon spin qubit
Xiao Xue, Benjamin D'Anjou, Thomas F. Watson +8
Quantum error correction is of crucial importance for fault-tolerant quantum computers. As an essential step towards the implementation of quantum error-correcting codes, quantum n…
Spatial Noise Correlations in a Si/SiGe Two-Qubit Device from Bell State Coherences
Jelmer M. Boter, Xiao Xue, Tobias S. Krähenmann +10
We study spatial noise correlations in a Si/SiGe two-qubit device with integrated micromagnets. Our method relies on the concept of decoherence-free subspaces, whereby we measure t…
Benchmarking Gate Fidelities in a Si/SiGe Two-Qubit Device
X. Xue, T. F. Watson, J. Helsen +7
We report the first complete characterization of single-qubit and two-qubit gate fidelities in silicon-based spin qubits, including cross-talk and error correlations between the tw…
A new class of efficient randomized benchmarking protocols
Jonas Helsen, Xiao Xue, Lieven M. K. Vandersypen +1
Randomized benchmarking is a technique for estimating the average fidelity of a set of quantum gates. For general gatesets, however, it is difficult to draw robust conclusions from…